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C122 Copper (UNS C12200) – Composition, Properties, And Uses

C12200 Copper Composition

C12200 copper composition is a type of copper alloy that contains around 99.9% pure copper, along with small amounts of lead and phosphorus to improve its machinability. This composition makes it an ideal material for many different applications, including plumbing, electrical wiring, and architectural design. Its high conductivity and corrosion resistance make it a popular choice in various industries. The C12200 copper composition also has excellent thermal and electrical conductivity, making it ideal for conductors and heat exchangers.

ELEMENT CU (1,2,3) P
Min % 99.99 0.015
Max % - 0.040

C12200 Copper Chemical Properties

The addition of cobalt to pure copper creates an alloy that has higher levels of wear resistance than pure copper alloys. Additionally, it features superior hot-shortness and high hardness at elevated temperatures when compared to other copper alloys. Copper C122 is a durable and corrosion-resistant alloy which features its unique combination of mechanical properties, wear resistance, and low coefficient of friction. It is an alloy composed of copper, nickel, chromium, and molybdenum, which gives it superior tensile strength when compared to other copper alloys. Furthermore, its solderability is excellent in both acidic and alkaline environments, making it the ideal choice for many applications. Copper C122 provides exceptional repeatability and accuracy in machining while still possessing impact toughness due to its ability to work hard without fail. These properties make it a preferred alloy for numerous industries that highly value performance and reliability.

C12200 Copper Mechanical Properties

Copper C122 is a versatile alloy exhibiting excellent mechanical properties that make it ideal for many industrial applications. Its thermal expansion coefficient is well balanced, and its strength-to-weight ratio is high enough to make it very stable in even extreme temperatures. Its low coefficient of friction makes copper C122 an effective material for tribological components, such as bearings, bushings and gears. Also, copper C122 has excellent wear characteristics thanks to its work-hardening abilities, making it well-suited for use in abrasion-resistant machine parts. In addition, copper C122 boasts superior corrosion resistance and outstanding electrical conductivity, making it suitable for situations where a balance between both electrical connections and mechanical performance is needed. Copper C122 truly lives up to its reputation as an essential industrial material.

FORM TEMPER TENSILE STRENGTH YS-0.5% EXT (KSI) ELONGATION (%) ROCKWELL (B) ROCKWELL (F) ROCKWELL (30T) SHEAR STRENGTH (KSI) FATIGUE STRENGTH SECTION SIZE (IN)
PLATE SHEET STRIP H02 42 36 14 40 84 50 26 13 0.04
H01 38 30 35 25 70   25   0.25
H01 38 30 25 25 70 36 25   0.04
H00 36 28 30 10 60 25 25   0.04
H00 36 28 40 10 60   25   0.25
M20 32 10 50   40   22   0.25
M20 34 10 45   45   23   0.04
H10 57 53 4 62 95 64 29   0.04
H04 50 45 6 50 90 57 28 13 0.04
H04 45 40 20 45 85   26   1
H04 50 45 12 50 90   28   0.25
OS025 34 11 45   45   23 11 0.04
OS050 32 10 50   40   22   0.25
OS050 32 10 45   40   22   0.04
H08 55 50 4 60 94 63 29 14 0.04
PIPE H04 50 45 10 50 90   28    
TUBE H80 55 50 8 60 95 63 29 19 0.065
H55 40 32 25 35 77 45 26 14 0.065
OS025 34 11 45   45   23   0.065
OS050 32 10 45   40   22 11 0.065

C12200 Copper Physical Properties

Copper C122 is a ductile metal with excellent weldability characteristics. It has a melting point range between 1730-1790°F (945-980°C). Its tensile strength ranges from 60-90 ksi (414-621 MPa) depending on the heat treatment processes used during fabrication.

Melting Point – Liquidus ⁰F 1981  
Melting Point – Solidus ⁰F 1981  
Density lb/cu in. at 68⁰F 0.323  
Specific Gravity 8.94  
Electrical Conductivity % IACS at 68⁰F 101(1)  
Thermal Conductivity Btu/sq ft/ft hr/ ⁰F at 68⁰F 226  
Coefficient of Thermal Expansion 10-6 per ⁰F (68-212 ⁰F) 9.4  
Coefficient of Thermal Expansion 10-6 per ⁰F (68-392 ⁰F) 9.6  
Coefficient of Thermal Expansion 10-6 per ⁰F (68-572 ⁰F) 9.8  
Specific Heat Capacity Btu/lb/⁰F @ 68 ⁰F 0.092  
Modulus of Elasticity in Tension ksi 17000  
Modulus of Rigidity ksi 6400

C12200 Copper Equivalent

ASME B16.22 ASTM B111 ASTM B370 ASTM B623 ASTM B88
ASME B16.29 ASTM B133 ASTM B379 ASTM B638 MIL B-18907
ASME SB111 ASTM B152 ASTM B395 ASTM B640 MIL B-20292
ASME SB133 ASTM B224 ASTM B42 ASTM B641 MIL T-22214
ASME SB152 ASTM B272 ASTM B432 ASTM B68 MIL T-24107
ASME SB359 ASTM B280 ASTM B442 ASTM B687 MIL T-3235
ASME SB395 ASTM B302 ASTM B447 ASTM B698 SAE J461
ASME SB42 ASTM B306 ASTM B5 ASTM B716 SAE J463
ASME SB543 ASTM B359 ASTM B506 ASTM B743 UNS C12200
ASME SB75 ASTM B360 ASTM B543 ASTM B75  

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